﻿<!DOCTYPE html>
<html>
<head>
  <title>Simulating Input Events</title>
  <!-- Copyright 1998-2020 by Northwoods Software Corporation. -->
  <meta name="description" content="TypeScript: Test a diagram by simulating abstract input events." />
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <script src="../assets/js/goSamples.js"></script> <!-- this is only for the GoJS Samples framework -->
</head>
<body>
  <div id="sample">
    <div style="width: 100%; display: flex; justify-content: space-between">
      <div id="myPaletteDiv" style="width: 80px; height: 400px; margin-right: 2px; border: solid 1px black"></div>
      <div id="myDiagramDiv" style="flex-grow: 1; height: 400px; border: solid 1px black"></div>
    </div>
    <p>
      To simulate mouse events the buttons below use the <b>Robot</b> class that is defined in <a href="Robot.ts">Robot.ts</a>.
    </p>
    <p>
      Click these buttons in order from top to bottom:<br />
      <button id="dragFromPalette">Drag From Palette</button><br />
      <button id="copyNode">Copy Node</button><br />
      <button id="dragSelectNodes">Drag Select Nodes</button><br />
      <button id="clickContextMenu">Context Menu Click Alpha</button><br />
      <button id="deleteSelection">Delete</button><br />
    </p>
    <p>
      Clicking operations:<br />
      <button id="clickLambda">Click Lambda</button><br />
      <button id="doubleClickLambda">Double Click Lambda</button><br />
    </p>
    <p>
      The <a>UndoManager</a> has been enabled in the main Diagram.
      Give focus to the Diagram and you can undo everything and then redo everything to confirm what was executed by the Robot.
    </p>
    <div id="myStatus" style="color:green"></div>
  </div>

  <script type="module" id="code">
    import * as go from "../release/go-module.js";
    import { Robot } from './Robot.js';

    if (window.goSamples) goSamples(); // init for the samples -- you don't need to call this
    const $ = go.GraphObject.make; // for conciseness in defining templates

    function showProperties(e, obj) {
      const node = obj.part.adornedPart;
      if (node === null || node.data === null)
        return;
      let msg = 'Context clicked: ' + node.data.key + '. ';
      msg += 'Selection includes:';
      myDiagram.selection.each(function(part) {
        msg += ' ' + part.toString();
      });
      const stat = document.getElementById('myStatus');
      if (stat !== null)
        stat.textContent = msg;
    }
    function nodeClicked(e, obj) {
      const evt = e.copy();
      const node = obj.part;
      if (node === null || node.data === null)
        return;
      const type = evt.clickCount === 2 ? 'Double-Clicked: ' : 'Clicked: ';
      const msg = type + node.data.key + '. ';
      const stat = document.getElementById('myStatus');
      if (stat !== null)
        stat.textContent = msg;
    }
    const myDiagram =
      $(go.Diagram, 'myDiagramDiv', // must name or refer to the DIV HTML element
        {
          nodeTemplate:
            $(go.Node, 'Auto',
              {
                click: nodeClicked,
                doubleClick: nodeClicked,
                contextMenu:
                  $('ContextMenu',
                    $('ContextMenuButton',
                      $(go.TextBlock, 'Properties'),
                      { click: showProperties }))
              },
            $(go.Shape, 'Rectangle', { fill: 'lightgray' },
              { portId: '', fromLinkable: true, toLinkable: true, cursor: 'pointer' }),
            $(go.TextBlock, { margin: 3 },
              new go.Binding('text', 'key'))
          ),
          model: new go.GraphLinksModel([
            { key: 'Lambda' },
            { key: 'Mu' }
          ], [
            { from: 'Lambda', to: 'Mu' }
          ]),
          'undoManager.isEnabled': true
        });

    // a shared Robot that can be used by all commands for this one Diagram
    const myRobot = new Robot(myDiagram); // defined in Robot.js

    // initialize the Palette that is on the left side of the page
    const myPalette =
      $(go.Palette, 'myPaletteDiv', // must name or refer to the DIV HTML element
        {
          nodeTemplate: myDiagram.nodeTemplate,
          model: new go.GraphLinksModel([
            { key: 'Alpha' },
            { key: 'Beta' },
            { key: 'Gamma' },
            { key: 'Delta' }
          ])
        });

    function dragFromPalette() {
      // simulate a drag-and-drop between Diagrams:
      const dragdrop = { sourceDiagram: myPalette, targetDiagram: myDiagram };
      myRobot.mouseDown(5, 5, 0, dragdrop); // this should be where the Alpha node is in the source myPalette
      myRobot.mouseMove(60, 60, 100, dragdrop);
      myRobot.mouseUp(100, 100, 200, dragdrop); // this is where the node will be dropped in the target myDiagram
      // If successful in dragging a node from the Palette into the Diagram,
      // the DraggingTool will perform a transaction.
    }

    function copyNode() {
      const alpha = myDiagram.findNodeForKey('Alpha');
      if (alpha === null)
        return;
      const loc = alpha.actualBounds.center;
      const options = { control: true, alt: true };
      // Simulate a mouse drag to move the Alpha node:
      myRobot.mouseDown(loc.x, loc.y, 0, options);
      myRobot.mouseMove(loc.x + 80, loc.y + 50, 50, options);
      myRobot.mouseMove(loc.x + 20, loc.y + 100, 100, options);
      myRobot.mouseUp(loc.x + 20, loc.y + 100, 150, options);
      // If successful, will have made a copy of the "Alpha" node below it.
      // Alternatively you could copy the Node using commands:
      // myDiagram.commandHandler.copySelection();
      // myDiagram.commandHandler.pasteSelection(new go.Point(loc.x+20, loc.y+100));
    }

    function dragSelectNodes() {
      const alpha = myDiagram.findNodeForKey('Alpha');
      if (alpha === null)
        return;
      const alpha2 = myDiagram.findNodeForKey('Alpha2');
      if (alpha2 === null)
        return;
      const coll = new go.Set();
      coll.add(alpha);
      coll.add(alpha2);
      const area = myDiagram.computePartsBounds(coll);
      area.inflate(30, 30);
      // Simulate dragging in the background around the two Alpha nodes.
      // This uses timestamps to pretend to wait a while to avoid activating the PanningTool.
      // Hopefully this mouse down does not hit any Part, but in the Diagram's background:
      myRobot.mouseDown(area.x, area.y, 0);
      // NOTE that this mouseMove timestamp needs to be > myDiagram.toolManager.dragSelectingTool.delay:
      myRobot.mouseMove(area.centerX, area.centerY, 200);
      myRobot.mouseUp(area.right, area.bottom, 250);
      // Now should have selected both "Alpha" and "Alpha2" using the DragSelectingTool.
      // Alternatively you could select the Nodes programmatically:
      // alpha.isSelected = true;
      // alpha2.isSelected = true;
    }

    function clickContextMenu() {
      const alpha = myDiagram.findNodeForKey('Alpha');
      if (alpha === null)
        return;
      const loc = alpha.location;
      // right click on Alpha
      myRobot.mouseDown(loc.x + 10, loc.y + 10, 0, { right: true });
      myRobot.mouseUp(loc.x + 10, loc.y + 10, 100, { right: true });
      // Alternatively you could invoke the Show Context Menu command directly:
      // myDiagram.commandHandler.showContextMenu(alpha);
      // move mouse over first context menu button
      myRobot.mouseMove(loc.x + 20, loc.y + 20, 200);
      // and click that button
      myRobot.mouseDown(loc.x + 20, loc.y + 20, 300);
      myRobot.mouseUp(loc.x + 20, loc.y + 20, 350);
      // This should have invoked the ContextMenuButton's click function, showProperties,
      // which should have put a green message in the myStatus DIV.
    }

    function deleteSelection() {
      // Simulate clicking the "Del" key:
      myRobot.keyDown('Del');
      myRobot.keyUp('Del');
      // Now the selected Nodes are deleted.
      // Alternatively you could invoke the Delete command directly:
      // myDiagram.commandHandler.deleteSelection();
    }

    function clickLambda() {
      const lambda = myDiagram.findNodeForKey('Lambda');
      if (lambda === null)
        return;
      const loc = lambda.location;
      // click on Lambda
      myRobot.mouseDown(loc.x + 10, loc.y + 10, 0, {});
      myRobot.mouseUp(loc.x + 10, loc.y + 10, 100, {});
      // Clicking is just a sequence of input events.
      // There is no command in CommandHandler for such a basic gesture.
    }

    function doubleClickLambda() {
      const lambda = myDiagram.findNodeForKey('Lambda');
      if (lambda === null)
        return;
      const loc = lambda.location;
      // double-click on Lambda
      myRobot.mouseDown(loc.x + 10, loc.y + 10, 0, {});
      myRobot.mouseUp(loc.x + 10, loc.y + 10, 100, {});
      myRobot.mouseDown(loc.x + 10, loc.y + 10, 200, { clickCount: 2 });
      myRobot.mouseUp(loc.x + 10, loc.y + 10, 300, { clickCount: 2 });
    }

    document.getElementById("dragFromPalette").onclick = dragFromPalette;
    document.getElementById("copyNode").onclick = copyNode;
    document.getElementById("dragSelectNodes").onclick = dragSelectNodes;
    document.getElementById("clickContextMenu").onclick = clickContextMenu;
    document.getElementById("deleteSelection").onclick = deleteSelection;
    document.getElementById("clickLambda").onclick = clickLambda;
    document.getElementById("doubleClickLambda").onclick = doubleClickLambda;

    window.myDiagram = myDiagram; // Attach to the window for console debugging
  </script>
</body>
</html>